Agree with Jim on safety. My instructions with family is absolutely no tolerance errors. We just good heartedly put the gun away for the day. Lesson's over. No hard feelings ever. They do get the message.
When things are straightened away, choose a gun with least recoil and lightest loads and let them shoot, have fun. It might take 10 shots on easy clays but that first one, bits or smoke, provides confidence, wow, I can do it.
Go from there. Same as training a puppy. Make it pleasing for student and teacher, always reinforcing it's no place for complacency.
